<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form method="post" action="/updateBookInfo">
    <input type="hidden" name="id" value="{{book.id}}">
    图书名称:<input type="text" name="btitle" value="{{book.btitle}}">
    日期:<input type="date" name="bpub_date" value="{{ book.bpub_date|date:"Y-m-d" }}">
   <input type="submit" value="修改">

</form>
</body>
</html>